MATHEMATICS HIGH SCHOOL

Given f(x) = –5x + 1, what is f(–2)?A.
3/5

B.
-9

C.
11

D.
1

Answers

Answer 1
Answer: -5(-2)+1 10+1=11 Your answer is C

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Rewrite the following quadratic function in vertex form. Then, determine if it has a maximum or minimum and say what that value is.y = -x 2 + 6x + 5 HELP PLEASE!!!!!!
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Write expression in standard form 5x-(-4+-2x)
A line includes the points (2, 10) and (1, 0). What is its equation in slope-intercept form?

PLEASE HELP! 15 POINTS Order the expressions from greatest to least coefficient of x. Place the expression with the greatest coefficient of x at the top. 12+4x, 13x, 15-x, 14-7x----------My answer: 13x, 14-7x, 12+4x, 15-x

Answers

Answer:

you're right; 13x, 14 - 7x, 12 + 4x, 15 - x

13, 7, 4, 1

10(23+7)=100ℓ+100ℓ What is the value of \large\ellℓell in the equation above?

Answers

Answer:

ℓ = 1.5

Step-by-step explanation:

An equation 10(23+7)=100ℓ+100ℓ is given and we are asked to find the value of ℓ.

To solve the equation, we have to move all the values containing ℓ on one side and other values on other side of equality.

10(23+7)=100ℓ+100ℓ

Multiply 10 with 23 and 7  which gives

(10 * 23 ) + ( 10 * 7) = 200 ℓ

Solving the above equation,

230 + 70 = 200 ℓ

300 = 200 ℓ

=> ℓ = 300 / 200

=> ℓ = 3/2

=> ℓ = 1.5

Convert: 16 square kilometers to acres

Answers

16 square kilometers is 3953.6861 acres.

The radii of Earth and Pluto are 6,371 kilometers and 1,161 kilometers, respectively. Approximately how many spheres the size of Pluto does it take to have the same volume as Earth?

Answers

so find the volume of them
volume of sphere=4/3pi times r^3
volume of earuth
4/3 times pi times 6371^3=aprox 1.08 times 10^12 (really big number so scientific notation)


volume of pluto
4/3 times pi times 1161^3=6.56 times 10^9

so pluto times x=earht
divide both sdies by pluto
x=earth/pluto
solve for x
earth=1.08 times 10^12
pluto=6.56 times 10^9
(1.08 times 10^12)/(6.56 times 10^9)=(1.08/6.56) times (10^12)/(10^9)
when dividing exponents, just subtract
12-9=3
so
1.08/6.56 times 10^3
0.164634 times 10^3
164.634
aprox 165 plutos will fit in earth

Answer:

165

Step-by-step explanation:

I just took a test on Plato/Edmentum with this question and this was the right answer

~Please mark me as brainliest :)

Suppose that S and T are on points on the number line.If ST=20 and S lies at 3, where could T be located?

Answers

Answer: T= 6.66

Step-by-step explanation:

ST = 20 and S=3

(3)T = 20

T= 20 \ 3

T= 6.66

Simplify (2n + 5) - (3n + 7) + (4n - 9).
-3n - 11
3n - 11
-3n + 11
3n + 11

Answers

☸ We are going to simplify this Step-By-Step. ☸

☸ First here is the question you ask:

2n+5−(3n+7)+4n−9

☸ Lets start with this:

=2n+5+−3n+−7+4n+−9

☸ Now lets Combine Like Terms:
(Pst the bold stuff is for Combining Like Terms)

=2n+5+−3n+−7+4n+−9

=(2n+−3n+4n)+(5+−7+−9)

☸ Your answer shall be:

=3n+−11

☸Hope this helps!☸
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